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NEET2009BotanyAnatomy of Flowering PlantsActual

Duramen is present in

Options

  1. Ainner region of secondary wood
  2. Bpart of sap wood
  3. Couter region of secondary wood
  4. Dregion of pericycle

Correct answer

A. inner region of secondary wood

Step-by-step solution

After certain years of growth, the xylem elements of the stems of a number of trees develop dark brown colouration, especially in the central or innermost layers. This region comprises dead element with highly lignified walls and is called heart wood or duramen. It is present in inner region of secondary wood.

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